Cap



FIG. 1 is a perspective view of a cap showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear, left side, and right side views being mirror images thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a cap, as shown and described. 